Hi, has anybody used the rubber inserts on their car suspension springs when towing??
Better known as spring assisters or some call them "doughnuts". I am about to fit a pair to my Astra saloon for about £15 a pair to increase rear ride height and stop bottoming when towing my trailer tent.
I had a replacement exhaust fitted when we were away last year and any weight in the boot causes it to clunk on the rear axle...
I am hoping that these assisters will do the job...
Has anybody got any experience with these please.....
We had the rubber cone type spring assisters fitted to our car because of the angle between the drive and the road made the car bottom when pulling out with the camper. I can't say I noticed much improvement. They are tough to put on even after putting them in a bucket of hot water..
We now have a caravan and have had a mover fitted to it to cure the problem.
i have the rubber insert spring assisters fitted to my car to stop the rear end from sagging .they do make a differance.they also make the car handle better. only down side is you feel the speed bumps more.if you put washing up liquid on them it makes them much easier to fit .did mine in about ten minutes.you should let your insurance know if you fit them.they normally put it down as self levelling suspension without any extra charge.
my boyfriend had these fitted to his car, they were black rubber coil type, put in very hot water to losen them and plenty of fairy liquid, be patient though, they do work.
I would suspect ther is somthing wrong with your suspension or the wieght of your unit if you are bottoming out an Astra with a TT. We towed our Conway Royale fully laden (450kg) with an Astra and never out bottomed out once
Hi, I used spring assisters similar to your description. I was towing a Dandy with an elderly Polo SALOON. As the saloon is longer than the more common hatchback, it caused my suspension to bottom in the way you are describing. They were very successful and outlived the car, (which did 154,000 before I sold it and was still on the road 18 months later.)
I have towed successfully with an Astra ever since, and never needed to fit spring assistors to it, but my "L" astra estate did tend to ride rather low when loaded, so possibly would have benefited. Not so sure about the "clunking" exhaust though?
Hi, I would check your nose weight (the weight your towbar is putting on your tow ball) - the caravan forum may be able to advise on this. It should probably be about 25kgs, which isn't much (a bit like 1 bag of cement in your boot). If it is to high then reload the trailer, not only is it currently banging the back of your car about, it is also lifting the front end and making the brakes and steering ineffective - jacking up the rear will not change this much. I have towed a well balance single axle trailer with a loaded weight of 1.2 tons with my Fiat Brava (Astra sized saloon) with no problems - I have also had a half ton load of sand "slip forward" in the same trailer - this resulted in the front brakes hardly doing anything, the steering going scarilly light and the bottom of the tow bar scraping on speed bumps. Your exhaust probably needs the couplings loosening off and it being realigned (twisted a bit) as they can easily be badly fitted - but take it somewhere - they make it look dead easy at the exhaust place but often it's not.
Hi Chris,
Thanks for the reply, I have checked the nose of the trailer with a weight gauge and all is ok. Car has just passed MOT so I am thinking that suspension is OK also.
I will however check the cars laden weight before attaching a trailer and if necessary switch some of the load to the top box to centralise the weight.I have spoken to Vauxhall main dealer and they tell me that the saloon version is prone to do this as it has more weight past the rear axle than the hatchback. Their soloution is to look at fitting estate springs, but cannot guarantee any success.Spoke to local trailer company(who fitted towbar) and he advised me to try these assisters(£12/pair) before looking at more expensive options such as sport struts and springs..
Many thanks for posting repl
We had these on our rover 416 but they are designed to prevent bottoming out and not to increase the ride height new springs or shocks for that.
well will get some for our vectra when needs must but only as a precaution.